The act of spitting into both palms of your hands, grabbing your partner's genitals (male/female), and jerking/rubbing them in a furious yet delightful pattern. Can often be associated with heavy gagging.

Male 1: Hey man, how was it last night with your girl, did you score?
Male 2: Not much, man, she gave me a wicked spit and shine though!
Male 1: Spit and Shine, whats that?
Male 2: *spits*, *spits*, *proceeds to make disgusting and repulsive deepthroating sounds*